Valve-lock.



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vALvE LlocK. APPLICATION FILED FEB- I. 1911.

l Patented 001;. 23,1917;v

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vAu/ E LcK. APPLICATION FILED FEB. l. 19H.'

' i Patented 00h23, 1917.

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WILLIAM HENCKLER, OF ST. LOUIS, MISSOURI. i

VALVE-LOCK.

Specification of Letters Patent.

Patented Oct. .23, 1917.

AppIication filed February 1, 1917. Serial No. 145,961.

To alll whom t may concern:

Be it lmown that I, WILLIAM-HENCKLER, a citizen of the United States,residing at St. Louis, State of Missouri, have invented certain new anduseful Improvements in Valve-Locks; and I do declare the following i tobe a full, clear, and exact description of the invention, such as willenable others.l

skilled in the art to which it appertains to make and use the same. l

This invention relates to new and useful improvements in valve locks fortanks, and

' moreparticularly to a valve lock' for operatbe very eiiicien't inoperation.

ing a valve in a gasolene tank of an automobile to prevent unnecessaryand dangerv ous escape of gasolene from the tank,and also to prevent theuse' of the automobile when the valve is locked. 'l

Another object of theinvention isto provide a valve lock of thischaracter which employs a type Aof lock which is only operable y acertain type of key, and said lock bcing provided'witha latch toautomatically hold the valve when in open position, and to prevent thekey from turning to close the valve until the latch is release Anotherobj ect of this invention is to provide a device of this character whichis simple and 'durable in construction, inexpensive/to manufacture, andone which will With these and numerous other objects in view, myinvention consists of the ,novelfeatures" of construction, combinationand arrangement of parts. which will be herein.

der rotated to open position;

Fig. 5 is a from elevation of' the 160k;- Fig. 6 1s a .vertical sectionytaken on the line 6 6 of Fig. Ll;

Fig. 7 is a transverse section through the lock on the line 7-7 of Fig.3;

Figs. 8 and 9 are similar sections on the lines 8,-8 and 9.9 of Fig. 3;Fig. 10`is a transverse section takenon the line 10-,10 of Fig. 2;

-Figzl-l is a detail plan view of the cylinder removed from the casing;and Fig.'12 is an end view of the cap which is secured'to the top ofthecasing. l

' In describing my invention I shall refer to the drawings in whichsimilar reference Asa@ characters designate like parts throughout theseveral views. In the accompanying drawings, I` have shown the valvelock ap'- plied to lthe conventional" type of valve in a tank, but itwill be understood that this type of valve lockis applicable to varioususes andzneed not be limited `to the use illustrated in the accompanyingdrawings. The numeral 1 designates a valve casing having the usual typeof s aced inlet and outlet openings on opposite sides'of the same, andpositioned in this casing is a hollow rotatable valve 2 also providedwith inlet and outlet ports adapted to.l aline with the open- -ings in'the casing. Secured to the upper.

end ofthe valve casing l'is a longitudinally extending pipe or cover 3which protects `an operating rod 4: which is connected w-iththe lvalveQ.The pipe.-coveri ng 3 has a T joint 5 inserted intermediate its ends,and the shank portion of the same is connected with may be adjusted asis obvious.

Attached to the free end of the pipe cova brace 6wherebythe valve andcovering ering 3 is a lock casing 7 which is mounted on a bracket 8which is adapted to be secured to any desired type of support, 'on

the outside of the tank. This lock casing .'7' is open ended and isadapted 'to receive therein a rotatable cylinder 9 which has one enjdconnected with the adjacent endof the operating rod 4 of the valve. y

The rotatable cylinder 9 disposed within the lock casing is formed witha substantially longitudinall extending slot 10 there` in, and'theend othe same which isconnected, with the' rod 4 is reduced as shown Aat 11,and'is positioned in a reduced portion 12 in the lock casing. Theshoulders formed. Lby these reduced portions will consequently .abutwhenthe cylinder is in position, and `'longitudinally positioned ewithin the lock casing in the shoulder, is aspring pressed tumbler ordetent`12 which is adapted to ybe positioned normallyin an enlargedportion 13. atl the end of the slot in the cylinder.`

Furthermorethe rotatable cylinder is held in position byv means of aspring pressed tumbler 14'in the lock casing which is adapted to projecttransversely, and co-acts with eo l . an adj acent-portion positioned inan opening in the rotatable cylinder and which alines with the recess inwhich the tumblerl 14 is positioned, when said cylinder is in lockedposition. This cylinder is also provided witha pair of annular grooves16, in which are positionedprojecting lugs 17 from the inner wall of thelock casing adapted for engagement with the stops 17 in said grooves,and are adapted to securely hold the cylinder in position and preventmovement of the same.

In the top of the lock casing 7 is a longitudinally extending slot 18 inwhich is pivotally mounted a latch 19, said latch having one endnormally positioned downwardly through the opening and against the outersurface of the cylinder, the other end of said latch being projectedoutwardly by means of a Hat spring 20 positioned beneath the same andalways tending to hold it in raised position. This spring will exert a.constant pressure upon the cylinder on the other end of the latch, andthe lcylinder 9 is provided with a longitudinally extending .slot 21therein, in which this end of the latch is adapted to be positioned whenthe cylinder is rotated a predetermined distance. This willautomatically lock the cylinder in position and it is necessary tolrelease the latch by compressing the handle of the same -before thecylinder may be again rotated.

The outer end of the casing 7 is screw threaded and adapted to bepositioned thereon is a cap. 22, which is internally threaded forengagement with said end and which has its outer end formed with anopening therein with a recessedI portion 23, and a stop lug 24positioned'diametrically opposite said recessed portion.l Through thiscap and into the slot 10 in the cylinder is adapted to be positioned theactuating key 25 which forms the operating means for the lock. This keyis so formed that when positioned within the cylinder, the outer end ofthe same will strike the spring pressed tumblers and release them, sothat the cylinder may be readily turned.

In operation when the p arts of the valve lockare assembled as shown inFigs. 2 and 3 of the drawings, it will bev obvious thatv the key v25being positioned within the rotatable cylinder 9 will release thelocking tumblers and allow the cylinder to be rotated. .This rotatablecylinder is so connected with the valve 2 through the operating rod 4that when the cylinder is in locked position the valve is closed. Toopen the valveit 1s only necessary to turn the key 25, whereupon thecylinder will be rotated a predetermined distance until the valve isopened. When the valve is opened the slot 2l within the cylinder will bepositioned directly beneath the latch 19, whereupon the end of the latchwill drop into said slot, owing to the fact that the said latch isspring pressed, and any further rotation of the cylinder will beprevented. This will automatically lock the valve in open position.

When it is desired to release the Valve it is necessary to pressinwardly upon the handle portion of the latch and lift the projected endof the same from the slot 2l in the cylinder, whereupon the cylinder maybe once more rotated back to its first position, and upon withdrawal ofthe key the tumblers will automatically lock the same against additionalrotation. The turning of the key is furthermore additionally limited bythe stop 24 in the open end of the cap 22, and the recessed portion 23allows the key to be positioned in the cylinder when the slot thereinalines with this recess. The automatic latch which locks the cylinderprevents the key from turning when the valve is opened, and makes itnecessary before the key can be turned or removed to release the latch.

From the foregoing description of the construction and operation of myimproved valve lock, the manner. of applying the same to use, and theoperation thereof will be readily understood, and it will be seen that Ihave provided a simple andeiiicient device of this character forcarrying out the objects of the invention.

I claiin:

1. A device of the class described comprising a casing, a key actuatedrotatable cylinder in said casing, spring pressed tum blers to normallylock the cylinder against rotation and releasable upon insertion of thekey, and a manually releasable latch to automatically lock the cylinderwhen lthe same is rotated a predetermined distance.

2. A device of the class described comprising a casing, a key actuatedrotatable cylinder in said casing, spring pressed tuinblers to normallylock the cylinder against rotation and releasable upon insertion of thekey, said cylinder having a depression in its outer surface, a springpressed manually releasable latch pivoted on the casing,

and one end of said latch extending through witnesses.

WILLIAM I-IENCKLER.

Witnesses:

JOHN C. FARBEH., CLARA LAMPERT.

